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Overview

moov-io/ach

Moov ACH implements a low level Automated Clearing House (ACH) interface for parsing, creating, validating, and merging ACH files. Moov ACH exposes an HTTP API for REST based interaction. Any language which can use HTTP and JSON can leverage the ACH Server. The API's endpoints expose both text and JSON to easily ingest or export either format.

Running Moov ACH Server

Moov ACH can be deployed in multiple scenarios.

  • Binary Distributions are released with every versioned release. Frequently added to the VM/AMI build script for the application needing Moov ACH.
  • A Docker container is built and added to Docker Hub with every versioned released.
  • Our hosted api.moov.io is updated with every versioned release. Our Kubernetes example is what Moov utilizes in our production environment.

Binary Distribution

Download the latest Moov ACH server release for your operating system and run it from a terminal.

host:~ $ cd ~/Downloads/
host:Downloads $ ./ach-darwin-amd64
ts=2019-06-20T23:23:44.870717Z caller=main.go:75 startup="Starting ach server version v1.0.2"
ts=2019-06-20T23:23:44.871623Z caller=main.go:135 transport=HTTP addr=:8080
ts=2019-06-20T23:23:44.871692Z caller=main.go:125 admin="listening on :9090"

Next Connect to Moov ACH

Docker Container

Moov ACH is dependent on Docker being properly installed and running on your machine. Ensure that Docker is running. If your Docker client has issues connecting to the service review the Docker getting started guide if you have any issues.

host:~ $ docker ps
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
host:~ $

Execute the Docker run command

host:~ $ docker run moov/ach:latest
ts=2019-06-21T17:03:23.782592Z caller=main.go:69 startup="Starting ach server version v1.0.2"
ts=2019-06-21T17:03:23.78314Z caller=main.go:129 transport=HTTP addr=:8080
ts=2019-06-21T17:03:23.783252Z caller=main.go:119 admin="listening on :9090"

OSX Users

You will need to use port forwarding: $ docker run -p 8080:8080 -p 9090:9090 moov/ach:latest)

Next Connect to Moov ACH

Kubernetes

The following snippet runs the ACH Server on Kubernetes in the apps namespace. You could reach the ach instance at the following URL from inside the cluster.

# Needs to be ran from inside the cluster
$ curl http://ach.apps.svc.cluster.local:8080/ping
PONG

$ curl http://localhost:8080/files
{"files":[],"error":null}

Kubernetes manifest - save in a file (ach.yaml) and apply with kubectl apply -f ach.yaml.

apiVersion: v1
kind: Namespace
metadata:
  name: apps
---
apiVersion: v1
kind: Service
metadata:
  name: ach
  namespace: apps
spec:
  type: ClusterIP
  selector:
    app: ach
  ports:
    - name: http
      protocol: TCP
      port: 8080
      targetPort: 8080
    - name: metrics
      protocol: TCP
      port: 9090
      targetPort: 9090
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: ach
  namespace: apps
  labels:
    app: ach
spec:
  replicas: 1
  selector:
    matchLabels:
      app: ach
  template:
    metadata:
      labels:
        app: ach
    spec:
      containers:
      - image: moov/ach:v1.0.0
        imagePullPolicy: Always
        name: ach
        args:
          - -http.addr=:8080
          - -admin.addr=:9090
        env:
          - name: ACH_FILE_TTL
            value: 30m # 30 minutes
        ports:
          - containerPort: 8080
            name: http
            protocol: TCP
          - containerPort: 9090
            name: metrics
            protocol: TCP
        resources:
          limits:
            cpu: 0.1
            memory: 50Mi
          requests:
            cpu: 25m
            memory: 10Mi
        readinessProbe:
          httpGet:
            path: /ping
            port: 8080
          initialDelaySeconds: 5
          periodSeconds: 10
        livenessProbe:
          httpGet:
            path: /ping
            port: 8080
          initialDelaySeconds: 5
          periodSeconds: 10
      restartPolicy: Always
Next Connect to Moov ACH

Connecting to Moov ACH

The Moov ACH service will be running on port 8080 (with an admin port on 9090).

Confirm that the service is running by issuing the following command or simply visiting the url in your browser localhost:8080/ping

$ curl http://localhost:8080/ping
PONG

$ curl http://localhost:8080/files
{"files":[],"error":null}

You can also send an example PPD ACH file we have to any ACH service or read through HTTP examples in Ruby and Go.

ACH Admin Ports

The port 9090 is bound by ACH for our admin service. This HTTP server has endpoints for Prometheus metrics (GET /metrics), readiness (GET /ready) and liveness checks (GET /live).